Hair brush



FIG. 1 is a perspective view of a hair brush showing my new design;

FIG. 2 is an end view of the hair brush of FIG. 1;

FIG. 3 is another view of the hair brush of FIG. 1 as seen from the handle; and,

FIG. 4 is a plan view of the hair brush of FIG. 1.

The broken line showing of a handle is included for the purpose of illustrating a portion of the article that forms no part of the claimed design. 

I claim the ornamental design for a hair brush, as shown. 